Iphone 4S no power on, short somewhere – iphone problem , and strang issue solution
Bit of background: a few months ago I used a bad charger and the power protection circuit broke, so I could only charge the phone when off, and couldnt sync it. Getting a new phone so thought I attempt a repair and would sync it one last time so I could get all my data off etc.
Tried to jumper L3 & L4, but something has gone wrong and now I cant power on. The power management unit (I think) gets very hot when battery is plugged in. Not so bad Along with USB but still cant turn on.
Do I want to replace the chip? Cant find anywhere that has the exact same symptoms. Thanks!